RetrObrite

[adz]

Sure, but I've given him a chance to explain before I get out the old Nonceometer. :lol:

Bugger that, name the nonce so we can all point and laugh :rofl:

[Arkhan]

I mixed some up and used it on a PC-Engine Duo-R

it worked awesome.  I carefully brushed it on and didn't have to disassemble the unit to use it, and then carefully wiped it all off too.

Only mix what you plan to use.  A buddy mixed a whole mess of it, ignored warnings and stored it in a tub in his room.  He came back from work with an exploded mess in there...

[sbeehre]

Here are some pics from my work over the weekend you can really see the difference when i put the top of the case on with the un-treated bottom.

[Dagger]

1st time poster so please be gentle :laughing: This thread is amazing and I am more amazed that more people are not carrying out this process. I have a few questions even though I did read through the thread.
Am I right in that the item has to stay submerged when using the liquid formular?

And finally how do some people get results in a few hours instead of a few days? Many thanks to anyone that answers.

[adz]

1st time poster so please be gentle :laughing:

Welcome to the org

[Arkhan]

1st time poster so please be gentle :laughing: This thread is amazing and I am more amazed that more people are not carrying out this process. I have a few questions even though I did read through the thread.
Am I right in that the item has to stay submerged when using the liquid formular?

And finally how do some people get results in a few hours instead of a few days? Many thanks to anyone that answers.

You use guargum stuff to make it a gel-like substance.  I just used a spongey paint brush, and layered it on, and then stuck it under a light. Then you just dampen a rag and wipe it off.  Didn't even have to disassemble my console.

[WotTheFook]

@ TJLazer

You can get it in the States at pet supplies stores, they call it "Urine Rescue" and it's the 35% grade of H2O2, it's in gallon containers and cheap too. Xanthan gum can be got from health food shops or on Ebay. A touch of 'Billy Mayes' finest hour' and you are good to go.

WotTheFook ( also known as Merlin )

@ Dagger

All of the information you need is in the Wiki, located here:-

http://retr0bright.wikispaces.com

The "Oxy" acts as a catalyst and it's this, along with concentrated UV light, that allows us to reverse the discolouration so quickly. It's a customised example of applied chemistry, as bromine vibrates under UV light and we exploit this to remove the attached oxygen molecule and replace it with a hydrogen from the catalysed H2O2.

Don't add a lot of "Oxy", as it will foam like a burst sofa; less definitely isn't more in this case.

@ all

For the Americans, our expert on applying Retr0bright out there is Lorne from Vintage Computer Forums who is in Arizona and he made us aware of Urine Rescue. There are three 200-page long threads on that site on Retr0bright (!) and they helped us tremendously in optimising the process.

[Dagger]

Hmm. Not easy to get hold off the Peroxide. Tried a few hairdressers etc but the best I have got so far is one small bottle of 9% from a chemist. I thought it would of been easier to get hold off in the UK.

[WotTheFook]

9% will work, it will just take a bit longer, that's all. You can get stronger than 9% at Sally Beauty outlets, they call it Developer.

Your nearest Sally agent is Capital Hair & Beauty. Unit 1, Cromwell Centre, Selinas Lane, Dagenham.

[Arkhan]

Hmm. Not easy to get hold off the Peroxide. Tried a few hairdressers etc but the best I have got so far is one small bottle of 9% from a chemist. I thought it would of been easier to get hold off in the UK.

weird .  that volumizer for hair bleach is friggin everywhere over here...

[WotTheFook]

That's because he didn't know it was called 'Developer' in the UK. He will be able to find it now...

[Dagger]

Many thanks for the tip WotTheFook. I will take a trip down there Friday afternoon. I made up a batch using the 9% and it does seem to be starting to work. I have 2 C64 keys that have been in soak for a day now and there does seem to be some slight change. Also I have 1 C16(grey) key which has been in soak for 2 days and that is almost yellow free now.

[TjLaZer]

Thanks all.  I ended up getting the Peroxide at Sallys and Xanthum gum on Amazon.  The strongest they had in the brown bottle.  Clairoxide 40.  Doing some yellowed keys and keyboards now, seems to be working good!  I need to do it for another day.  1 day already but it's not enough...

[Sandman]

Hey TJ,

Just get the 40 volume creme peroxide... I found that mixed with the oxy works great and there is no need for a thickener.

However, I still prefer the clear liquid peroxide myself although you need to use more to immerse the part.  Keys in a filled mayonaise jar placed under the uv light works great!

Tim

[tone007]

This was NOT done using the RetroBrite formula (the whole gel idea seems like too much trouble to me,) but H2O2 is good stuff.

Before:


After:


What a difference 8 hours makes.

[pan1k]

TONE:

Did you use the oxy in there at least? If you didn't... the yellowing might come back!